The installation of the exhibits may require mechanical and electrical work, and loading and unloading equipment may call for an additional work force.
布展可能需要机械和电力劳动，而装卸设备可能求额外的劳力。
The installation of the exhibits may require mechanical and electrical work, and loading and unloading equipment may call for an additional work force.
布展可能需要机械和电力劳动，而装卸设备可能求额外的劳力。
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